Combined yard-stick and square



UNITED STATES PATENT O FICE.

IVILLIAM \VEISSAGER, OF J EIISEY CITY, NE\V JERSEY.

COMBINED YARD-STICK AND SQUARE.

SPECIFICATION forming part of Letters Patent No. 416,024, dated November 26, 1889.

Application filed July 13, 1889. Serial No. 317,419. (No model.)

To all whom it may concern.-

Be it known that 1, WILLIAM WEIssAcER, a citizen of the United States, and a resident of Jersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Combined Yard-Stick and Square, of which the following is a specification.

My invention relates to a new and useful combined yard-stick and square; and it c011- sists in the construction of the device hereinafter set forth.

I11 the drawings the same referenceletters indicate the same parts in all the figures.

Figure 1 illustrates a side view of the de vice, all parts being in position when it is used as a yard-stick. Fig. 2 illustrates a side view of the device, all parts being in position when it is used as a square. Figs. 5,4, 5, 6, and 7 are side views of the device partly broken away, showing the several movements and the positions of the parts when it is being converted from a yard-stick to a square.

A is one section of the device, and B is the other, which is adapted to be moved and held in line with or at right angles to the part A, as hereinafter set forth. These parts A and Bmay be made of metal or of wood, or of wood and metal, as preferred. It is better that the ends of both of the parts adjacent to the joint should be of metal, in order that the joint may be strong and the engagement of the parts more accurate, thus sccuringa good and stiff right-angle connection.

For use by tailors and other similar uses, the main part of the device may be made of wood, but for masons and carpenters use it should preferably be made entirely of metal. 1 The parts constituting the joint are as fol ows:

D is a plate projecting from the part B, and located centrallybetween the two side pieces or plates E and F of the part A.

G is a slot made in the plate D, as shown.

II is a pin which passes through the two side plates E and F of the part A and plays in the slot G.

I is a locking-plate, which slides in a suitable undercut or dovetail slideway I, made in the face of the metal plate forming the end of the piece B, as shown, and J and K are two recesses, also undercut or dovetailed, placed at right angles to each other and made in the outerplate E of the part A, into which the end of thelocking-plate I may enter with a snug fit.

L is a thumb-crease in the sliding lockingplate I, whereby it may be easily moved by the thumb-nail or other suitable means.

The operation is as follows: To put the device in extended position for use as a yardstick, as shown in Fig. 1, the pin is caused to move through the inclined part a of the slot G, and when the parts A and B are snugly pushed together, abutting against each other, the pin will be in the upper part of the said slot, as shown in Figs. 1 and 3, and the lockingplate I may then be pushed into the recess J, whereby the parts will be locked firmly together, owing to the inclination of the part a of the slot acting upon the lock-plate through the pin II in such manner as to give it the action of a key, which firmly holds the parts together.

To alter the position of the parts so that they shall be at right angles to each other for use as a square, as shown in Figs. 6 and 7, the locking-plate I is shoved back and the parts are manipulated so that the pin passes through the part of the slot marked at until it reaches the part marked b, as shown in Fig. 4.. The end marked 13 may then be swung around, as indicated by the arrow in Figs. 3 and 4, .ithaving been separated from the part A sufficiently to clear the corners thereof (marked 0) from contact with the shoulders d of the part marked A. The swinging of the part B being continued in the direction of the arrow, the pin is caused to pass through the part marked 6 of the slot G, as shown in Fig. 5, and finally it is passed into the bayo net-joint locking part f of the slot, as shown in Fig. 7, having passed through the part marked g of the slot, and when in this position the parts will be firmly together at right angles to each other. The locking-plate I is then again pushed forward, its end entering the recess K in the plate E, thus locking the parts firmly together.

Having described my invention, I claim A combined yard-stick and square comprising, essentially, two parts, afpin attached to one part, a 10cking-p1ate attached to one of Signed at New York, in the county of New the parts, the part to which the locking-plate York and State of New York, this 12th day is not attached being provided with recesses, of July, A. D. 1889. v which have lateral presentation at right an- 5 gles to each other, adapted to receive the end \VILLIAM WEISSAGER.

0f the locking-plate, and the part to which the pin is not attached being provided with a Witnesses: slot, through which the pin may move during PHILLIPS ABBOTT, the adjustments of the parts, substantially as FREDERICK SMITH.

to and for the purposes set forth, 

